Cellulose gum is a natural ingredient derived from plant cellulose, a polysaccharide found in the cell wall of green plants. Cellulose is the most abundant organic polymer on Earth. In cosmetics and skin care products, cellulose gum and other cellulose derivatives are popular aqueous thickeners. Upon addition to a formula, cellulose gum has the ability to thicken the aqueous (water) portion of the formula due to its high molecular mass, resulting in a clear gel. Cellulose gum can also be used as a film-forming agent.